Removing Exchange Mailbox Property using PowerShell

Question

    Get-Mailbox * -ResultSize Unlimited | Where {($_.DeliverToMailBoxAndForward -eq $false) `
-and ($_.forwardingsmtpaddress -eq $true)} | Set-Mailbox -DeliverToMailboxAndForward $true

Does anyone know why this code doesn't work? It Seems correct, it should select the mailboxes with forwarding on and then if delivertomailboxandforward is false, set it to true?

Thanks

Tim Haintz · Accepted Answer · 2017-10-12 19:35:46Z

1

From the Set-Mailbox page for DeliverToMailboxAndForward.

The default value is $false. The value of this parameter is meaningful only if you configure a forwarding recipient or email address.

You will also need -ForwardingAddress.

Get-Mailbox * -ResultSize Unlimited | Where {($_.DeliverToMailBoxAndForward
-eq $false) -and ($_.forwardingsmtpaddress -eq $true)} | `
Set-Mailbox -DeliverToMailboxAndForward $true -ForwardingSMTPAddress '[email protected]'

Or

Get-Mailbox * -ResultSize Unlimited | Where {($_.DeliverToMailBoxAndForward
-eq $false) -and ($_.forwardingsmtpaddress -eq $true)} | `
Set-Mailbox -DeliverToMailboxAndForward $true -ForwardingSMTPAddress $_.forwardingsmtpaddress

Thanks, Tim.

edited Oct 12, 2017 at 19:35

answered Oct 12, 2017 at 10:31

Tim Haintz

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7 Comments

Royston Over a year ago

Okay, thanks for the information there - I have a handful of mailboxes already configured for forwarding so, what if i just want to turn ON the delivertomailbox and forwarding for compliance reasons for those mailboxes, would i * the -forwarding address parameter in that command?

Tim Haintz Over a year ago

Yeah, sorry, the first example I didn't use your $_.forwardingsmtpaddress -eq $true before your pipe into Set-Mailbox. The second code example should use the existing forwardingsmtpaddress and just set it again.

Tim Haintz Over a year ago

Checking that again, you might not be able to pass $_.forwardingsmtpaddress through. You might have to store that in a variable and use it later in Set-Mailbox.

Royston Over a year ago

Yeah, just testing it now - i'm running a csv after to check the settings and it's not changing the boolean value of delivertomailboxandforward for users with forwarding on to force local copies to be stored.....Still no joy!

Tim Haintz Over a year ago

Does $_.forwardingsmtpaddress in Set-Mailbox have a value? I don't have Exchange setup in my test environment so I can't test it end to end. As a test, on one user, if you set -ForwardingAddress to a known good email address, does the boolean value change?

|

Royston · Accepted Answer · 2017-10-12 11:44:24Z

0

    Get-Mailbox * -ResultSize Unlimited | Where {($_.DeliverToMailBoxAndForward `
-eq $false) -and ($_.forwardingsmtpaddress -ne $null)} | `
Set-Mailbox -DeliverToMailboxAndForward $true -forwardingsmtpaddress $_.forwardingsmtpaddress

Above Code works. Thanks for helping fire up the Synapses on this one!

Roy

answered Oct 12, 2017 at 11:44

Royston

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